I started this thread. I have since done another pair of Scalas and a Designer Heresy for my son.Getting ready to do two more pairs of Scalas. One pair for my other son (Yeah, we like La Scalas[]) and another pair for my daughter and her husband. Bondo works fine. I've used it for years on wood. Think about this, it's used on cars where the expansion/contraction is much greater than wood. The advantage is it's quick dry time,sandability,it will never crack out and it holds on so you can repair those smashed corners.